lttng-modules-2.13.18 Condition for Kernel 5.14.0-582.el9.x86_64 of Centos Stream 9.

lttng-modules-2.13.18 Condition for Kernel 5.14.0-582.el9.x86_64 of Centos Stream 9.

[Jean-Marc Chevalier via lttng-dev]

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For lttng-modules-2.13.18

I have this error with kernel version 5.14.0-582.el9.x86_64:

lttng-modules-2.13.18/src/lttng-statedump-impl.c:415:20: error: 'dev_base_lock' undeclared (first use in this function); did you mean 'device_lock'?

I got it to create modules by changing the condition on line 396

Original:
#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(6,9,0))

Modification:
#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(6,9,0)) || (LTTNG_LINUX_VERSION_CODE == LTTNG_KERNEL_VERSION(5,14,0))

I don't know how you distinguish the version after the dash character for RHEL kernels.

- JM

--
- Jean-Marc Chevalier
  Technicien
  Génie informatique Génie logiciel
  Local:     M-4002
  Téléphone: 514-340-4711 x4266

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Re: lttng-modules-2.13.18 Condition for Kernel 5.14.0-582.el9.x86_64 of Centos Stream 9.

[Kienan Stewart via lttng-dev]

Hi Jean-Marc,

On 5/14/25 3:16 PM, Jean-Marc Chevalier via lttng-dev wrote:
> For lttng-modules-2.13.18
> 
> I have this error with kernel version 5.14.0-582.el9.x86_64:
> 
> lttng-modules-2.13.18/src/lttng-statedump-impl.c:415:20: error: 'dev_base_lock' undeclared (first use in this function); did you mean 'device_lock'?
> 
> I got it to create modules by changing the condition on line 396
> 
> Original:
> #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(6,9,0))
> 
> Modification:
> #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(6,9,0)) || (LTTNG_LINUX_VERSION_CODE == LTTNG_KERNEL_VERSION(5,14,0))
> 
> I don't know how you distinguish the version after the dash character for RHEL kernels.
> 

For RHEL kernels you can use the LTTNG_RHEL_KERNEL_RANGE macro. E.g.

```
LTTNG_RHEL_KERNEL_RANGE(5,14,0,503,21,1,  5,15,0,0,0,0))
```

thanks,
kienan

> - JM
> 
> --
> - Jean-Marc Chevalier
>    Technicien
>    Génie informatique Génie logiciel
>    Local:     M-4002
>    Téléphone: 514-340-4711 x4266
>